1. Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taiwan;
2. Department of Surgery, Faculty of Medicine, University of Khartoum, Khartoum, Sudan;
3. Department of Surgery, Nottingham University Hospitals, Nottingham, UK;
4. Department of Plastic, Reconstructive and Hand Surgery, Maastricht University Medical Center, Maastricht, The Netherlands;
5. Division of Hand and Upper Extremity Surgery, Hospital for Special Surgery, New York, NY, USA